"To forget a friend is sad. Not every one has had a friend. And if I forget him, I may become like the grown-ups who are no longer interested in anything but figures…" 曾經互為好友,後來卻遺忘彼此,著實令人難過。我們得融入群體,和諧跟他者建立好關係,但內心明瞭誰才是真正的『朋友』。作者掛念小王子,因為他不希望自己跟某些成年人一樣,只對數字感興趣。簡單的啓發卻很重要,『友誼』僅只停留於知道對方之事實,還是確切地了解彼此內涵,可以擁有深度的交流?朋友質量比起人數多寡更能為生活帶下實際影響和助益。